package cn.tedu.sp06.controller;

import cn.detu.sp01.pojo.Item;
import cn.detu.sp01.pojo.Order;
import cn.detu.sp01.pojo.User;
import cn.detu.web.util.JsonResult;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

import java.util.List;

@RestController

public class RibbonController {

    @Autowired
    private RestTemplate rt;

    @GetMapping("/item-service/{orderId}")
    @HystrixCommand(fallbackMethod = "getItemsFB")
    public JsonResult<List<Item>> getItems(@PathVariable String orderId) {
        return rt.getForObject("http://item-service:8001/{1}", JsonResult.class, orderId);
    }

    @PostMapping("/item-service/decreaseNumber")
    @HystrixCommand(fallbackMethod = "decreaseNumberFB")
    public JsonResult<?> decreaseNumber(@RequestBody List<Item> items) {
        return rt.postForObject("http://localhost:8001/decreaseNumber",
                items, JsonResult.class);
    }

    @GetMapping("/user-service/{userId}")
    @HystrixCommand(fallbackMethod = "getUserFB")
    public JsonResult<User> getUser(@PathVariable Integer userId) {
        return rt.getForObject("http://user-service/{1}", JsonResult.class, userId);
    }

    @GetMapping("/user-service/{userId}/score")
    @HystrixCommand(fallbackMethod = "addScoreFB")
    public JsonResult<User> addScore(@PathVariable Integer userId, Integer score) {
        return rt.getForObject("http://user-service/{1}/score?score={2}", JsonResult.class, userId, score);
    }

    @GetMapping("/order-service/{orderId}")
    @HystrixCommand(fallbackMethod = "getOrderFB")
    public JsonResult<Order> getOrder(@PathVariable String orderId) {
        return rt.getForObject("http://order-service/{1}", JsonResult.class, orderId);
    }

    @GetMapping("/order-service")
    @HystrixCommand(fallbackMethod = "addOrderFB")
    public JsonResult addOrder() {
        return rt.getForObject("http://order-service/", JsonResult.class);
    }


    public JsonResult<List<Item>> getItemsFB(String orderId) {
        return JsonResult.err().msg("获取订单的商品列表失败!");
    }

    public JsonResult<?> decreaseNumberFB(List<Item> items) {
        return JsonResult.err().msg("减少商品库存失败!");
    }

    public JsonResult<User> getUserFB(Integer userId) {
        return JsonResult.err().msg("获取用户信息失败!");
    }

    public JsonResult<User> addScoreFB(Integer userId, Integer score) {
        return JsonResult.err().msg("增加银狐积分失败!");
    }

    public JsonResult<Order> getOrderFB(String orderId) {
        return JsonResult.err().msg("获取订单失败!");
    }

    public JsonResult addOrderFB() {
        return JsonResult.err().msg("保存订单失败!");
    }
}
